[Stoves] Stoves Digest, Vol 32, Issue 29

Wed Apr 24 17:21:48 CDT 2013

Dear Martin,

So many variables!

My thinking is separate and group the variables into the Boxes. Then group
them in the boxes so to get control over them - if possible. : )

If we can get control over variables we can move forward but if it is to
complex to do we continue in circles or move forward at a snail's pace- at
least that’s the way I look at it.  
I think the variable of regions is controlled with BOX 2 (more frequent
handling of fuel to do the same task) and BOX 5 when the cook decides to
remove the pot because the rice is finally cooked at the high elevation.
Done on site I guess. 

Thanks for the comment. 

Regards

Frank

-----Original Message-----
From: Stoves [mailto:stoves-bounces at lists.bioenergylists.org] On Behalf Of
Boll, Martin Dr.
Sent: Wednesday, April 24, 2013 2:52 PM
To: stoves at lists.bioenergylists.org
Subject: Re: [Stoves] Stoves Digest, Vol 32, Issue 29

Frank,

I remind what AJH a lot of time ago said about same stoves which are run in
different countries.
In GB there is a total different climate compared with the Sahel-zone. The
same wood (as the real same exists) has normally different moisture, and so
needs other stove-settings or even different stoves.

Think as well of different altitude, of different windy conditions,
different surrounding temperature.
A stove by the Inuit in winter will perform different from a likely stove
run in Mexico in summer, even when run with the same fuel.  -Light e.g. two
small cans filled with alcohol by -15°C or by 20°C and try to ignite with a
spark. The cold is difficult to start, the warm excellent.
- The spitting type of the fuel(wood) matters and differs, e.g. kindling cut
in square sticks differ from kindling cut in triangle-sticks. 
There is _so many_    _ much_  different, that your work will be very hard.
Some things could be not comparable because of important differences in
(outer) circumstances during the run of the stove

I don't know if it would be helpful to differentiate between regions which
have different given facts to run a stove, and make a clusters of regions
which are close to the same circumstances.
It would connect locally far distant areas with the same needs closer
together in (their people's) thinking about same needed stoves,  It would
give some not respected, or less respected aspects for the stove-developping
a bigger weight, which possibly is needed in  _that_ (related/connected)
regions.

Seen from the point of view of one of those "region"-clusters, I think your
boxes will fit far better and fail less, and give better information because
the outer circumstances are more or less the same.

Regards

Martin 

> 
> Message: 1
> Date: Tue, 23 Apr 2013 11:31:04 -0700
> From: "Frank Shields" <frank at compostlab.com>
> To: "'Discussion of biomass cooking stoves'"
> 	<stoves at lists.bioenergylists.org>
> Subject: [Stoves] Six BOX Program
> Message-ID: <009c01ce4050$b6c18420$24448c60$@compostlab.com>
> Content-Type: text/plain; charset="iso-8859-1"
> 
> Dear Stovers,
> 
> 
> 
> Getting Organized with the Six Box Program
> 
> BOX 1: Fuel(s)
> 
> BOX 2: Fuel manipulation between BOX 1 and BOX 3
> 
> BOX 3: Stove(s)
> 
> BOX 4: Utensil(s)
> 
> BOX 5: Manipulation between BOX 4 and BOX 6
> 
> BOX 6: Task(s)
> 
> 
> 
> The final report conclusion is the fuel used from BOX 1 to do the task 
> in BOX 6 to come up with a (Fuel / Task) value. Fuel being so variable 
> but all having the common element Carbon we convert the fuel used to 
> carbon used for the final result of (Carbon / Task). The body of the 
> report has all the parameters for each of the six variables (BOXES) 
> that resulted in the conclusion. That so this process can be repeated 
> by any lab and NGOs can pick from a list of stoves that have been 
> tested using the fuel and tasks common to the location.
> 
> 
> 
> Example report might go something like this:
> 
> 
> 
> BOX 1: Fuel used is: sticks, 25 to 30cm long, 10 to 20 % moisture, ~? 
> bark and ? split, curve ~ 1 to 5 % length off center, ????  Carbon content
to be
> determined later if not available or estimated at 44% dw.     
> 
> 
> 
> BOX 2: How and how frequent the fuel is placed in the stove. As Paul 
> Anderson pointed out this should be as it will be done in the field 
> with possibly one person cooking and adding fuel at the same time. A 
> lab instruction for operating the stove is based on observations.
> 
> 
> 
> BOX 3: Stoves; name, model number, designer etc. Also within this BOX 
> 3 is where HHV, LHV, condensation, tar build-up, particles, gas 
> emissions, heat transfer and other stove research is conducted. The 
> better the workings of BOX 3 (same for the other 5 BOXES) the better 
> the overall Carbon / Task data will look.
> 
> 
> 
> BOX 4: This is describing the Utensil (pot, pan) used for the 
> particular stove and task. Size, metal thickness, metal type, cover, etc.
> 
> 
> 
> BOX 5: The heat from the stove splits and some go into and through the 
> Utensil and the rest up the stack. The heat coming through the Utensil 
> hits the Task. This is where the How and Frequency the cook 
> manipulates the cooking process to distribute the heat is recorded. 
> Stir the pot of water or flipping the pancake. Instructions for this 
> should also be based on observation in the field to instruct the lab.
> 
> 
> 
> BOX 6: Completed Task recording quality and how well liked in the 
> field (?) the process went etc.
> 
> Conclusion is the Carbon used / Task. There can be more than one task 
> during this process if the stove is kept fuelled to heat a room or for 
> light or to keep hot coals to make easy to start the next fire. Or 
> this program can be added on to another Six BOX Program using the left
over char as BOX 1.
> 
> 
> 
> Just some ideas.
> 
> 
> 
> 
> 
> Thanks
> 
> 
> 
> Frank
> 
> 
> 
> 
> 
> Thanks
> 
> 
> 
> Frank Shields
> 
> 
> 
> BioChar Division
> 
> Control Laboratories, Inc. 
> 
> 42 Hangar Way
> 
> Watsonville, CE  95076
> 
> 
> 
> (831) 724-5422 tel
> 
> (81) 724-3188 fax
> 
> frank at biocharlab.com
> 
> www.controllabs.com
> 
> 

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